82409-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82409-56-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,4,0 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 82409-56:
(7*8)+(6*2)+(5*4)+(4*0)+(3*9)+(2*5)+(1*6)=131
131 % 10 = 1
So 82409-56-1 is a valid CAS Registry Number.